kt

kt

kt is short for Kubernetes Tail. It behaves like kubect logs -f and its usage is similar to kubectl get.

Table of Contents

• 0. Features
• 1. Usage
  • 1.1 Install bash/zsh completion
  • 1.2 Filter pods by name or regexp
  • 1.3 Filter pods by labels
  • 1.4 Tails pods belong to a higher level object
• 2. Installtion

0. Features

• Tail all containers in a pod by default.
• Automatically tail new pods, discard deleted pods and retry if the pod switches to running phase from pending phase.
• Recover from containers restart.
• Auto completion.
• Colorized output.

1. Usage

1.1 Install bash/zsh completion

NOTE: If you install kt using homebrew, the completion is already installed.

Load the completion code into current shell

## bash
$ source <(kt --completion bash)
## zsh
$ source <(kt --completion zsh)

1.2 Filter pods by name or regexp

$ kt foo

or

$ kt 'foo-\w+'

1.3 Filter pods by labels

$ kt -n prod -lapp=foo

1.4 Tail pods belong to a higher level object

Currently only the following resources are supported:

• Service
• Deployment
• StatefulSet
• DaemonSet
• HPA
• Job
• ReplicaSet
• ReplicationController
• Cronjob(partially supported. You must specify labels in the pod template.)

$ kt hpa foo

# You could limit which containers are tailed using regexp
$ kt -c 'sidecar-\w' svc foo

$ kt -n test --tail 30 deploy foo

$ kt --timestamps sts foo

$ kt --context prod ds foo

$ kt --cluster dev job foo

2. Installtion

Using Homebrew:

$ brew tap knight42/tap
$ brew install knight42/tap/kt

Or download from the release page.